var cp={
    0:'路飞',
    1:'女帝'
}
var str=''
for(let i in cp){

    str+=i+':'+cp[i]+'/n'}

console.log(str)

function add(a,b){

    if(a!=undefined && b!=undefined){
        return a+b;
    }else {
        return 0;
    }
}

console.log(add(1));
console.log('成功了');

